I am going to upgrade to a larger pump...but here's the ebay listing for it. Good deal since it's pretty much still new.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=7967111806
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=7967111806